iPhone 18 Pro Battery Capacities Revealed by Regulatory Filings

Key Points:

• New Chinese regulatory filings suggest the iPhone 18 Pro will have a battery capacity of around 4,056mAh in China and 4,288mAh in the U.S., slightly higher than the iPhone 17 Pro's batteries.
• The iPhone 18 Pro Max shows a significant battery increase, with capacities of approximately 5,391mAh in China and 5,567mAh in the U.S., nearly 500mAh more than its predecessor.
• The difference in battery sizes between China and U.S. models is attributed to the continued use of a physical SIM tray in China, while U.S. models rely solely on eSIM, allowing more internal space for larger batteries.
• Certification details include battery models S2232 and S2233 for the iPhone 18 Pro and models 2235L/2235 and 2236L/2236 for the Pro Max, with rated energy figures up to 21.751Wh and validity through 2031.
• The iPhone 18 Pro series is expected to launch in September with features like a smaller Dynamic Island, variable aperture main camera, and the A20 Pro chip, alongside Apple’s first foldable iPhone.